Radiator core



Patented Aug. 31, 1926.

earner carine'.

JOSEPHID. HARRS; OFIDIETROIT, MICHIGAN, ASSGNOR T0 MCCORD RADIATOR & MFG. CO., OF DETROIT, MICHGAN, ACO'RPRATION OF MAINE;

RADIATOR CORE.'

Application filed-October 19; 1922i Serial No. 595,475.'

This invention relates .to cores for -a-litomobile and `like radiators.

One object of myinvention isv to increase theV hea-t radiating capacity of the core by providing'the units with .flatpartition plates having tongues or wings on opposite sides thereof and extending into. the air passages of the structure.

Another object of my invention isto 1o roughen the surfaces. oi" theii'at` partition plates by providing them withf'pinfpricked undulations distributed over the Yplates on opposite sides.A thereof,` in order to `further increase the. heati radiating capacity of' the core.l

Ai urtherobject of.' my inventiona isA to turnA ori-twistthe-.tongaies or wings on an angle to the partition plates so that: afin at high velocity enteringthie core will" be diverted'ior its` course changed'to direct l colder air against the heated metal..

'The invention consists further in the matters-hereinafter described fand more particularly setiortli in-the appendedclainis;

In the accompanying drawings- Fig. l isi af front view of? an assembled core andshell, the lformer beingf constructed in accordance with my invention Fig. 2, isr an= enlarged front elevational view oi a-portionctftwo units o't'saidr core;

Fig. 3 is alike View7 off a portion otone unit; with the three parts thereof separated for the purpose of illustration; v

Fig.` l is a transversehoriZon-tal sectional view taken on. the` indirect line AL-l of Fig. 2; 1

Fig. 5 is a fragmentary perspective view of a portion ofone of the outer plateseoi a unit;

Figs. 6 andI 7 Y areffront` and! rear views, respectively, of: the partition pla-te;

Fig. 8- is an enlarged verticah sectional view of amletail. circonstruction tol be hereinafter described; and

9 `is an'edge view of 'acomplete unit.

In Fig. lfoiv the drawings, I have shown an automobile radiator having Aacore I constructed in accordance withV my invention and contained within an outer#r casing;` or shell 2,@ as usual in radiator construction. The core-lis built Vup of." a plurality of units, whichinthe orm-ofradiator shown in the drawings are vertically arrangedside by side to forni: the vertical water' passages andk horizontal air passages of` the core.

Each. unit comprises a pair. oifouter plates 3; and an interposed partition plate or web 5 all made Otrelatively thin sheet metal, such as brass. rllhe outer plates 3, et are corrugated transversely throughout their v lengths and liavethei-rsidelinargins oiiset outward to `form ,with the outer plates oil the adjacent.unitswaterpassages, as understood in radiator practice.

Said outer pla-tes 3, fare further provided alengtheirside edges withintegral strips 6, Gi arranged!onlthezinsideof the plates `and having folded connection therewith at spaced points 7, 7 in thelength of'r said strips, asin the PatentfNo. 1,233,765, granted July l?, 1917 to` C.' S. Erickson for cellnlar radiators.` The strips,y 6" are alsol corrugatedror bentlike the` outer plates, with the folded portions 7, 7l'in: fiati contact with the-associated portions of said plates and th'eother portions; 8, 8- projecting inward. In the particular construction shown, the corrugations are semi-hexagonal in form, with the portions 8, 820i `the-strips 6, 6 completing the hexagonsoffthef associated plates, as; shown- At the-foldedV sections T, 7 the plates 8', tfpi'esent adoubl-e thickness of sheet metal: while 1opposite thesections 8, 8 there isl enf'ly fa: single thickness.

Thelouter plates 3, 4t sofo'rmed areassembledoiie against the otherI with the projections S, Soiirone plate iitting-in` the spaces between the projections ofthe other plate to forni the lieXagon-alfair cellsat the front andzrear ofithe unit, as: shown in Figs. 2 aii'dli. The` strips 6, 6? also space the outer `plates 3, 4C. aparttol provide a space for the partition plate or web 5. This extends vertically ofthe unit and has awidth to extend bretweenhthe strips 6, 6 at the front and rear. Being' inf cont-act with these strips'the plate 5 is held f from edgewise displacement.

is sliowniir the drawings, thebody of the partition plate or web 5 is substantially flat throughout, and is provided on opposite sides with outwardly projecting wings or tongues 9, lOarranged in rows lengthwise vofsaidipl'ate. The wings 9 on one side of the plate aref in a single row while those 1001i: the opposite side of said plate are in adoubletrow, as shown in Figs. 6 and 7,

respectively. When in place between the outer plates 3, 4, the wings or tongues 9, 10 extend into the depressions in said outer plates. `The tongues or wings 9 of the singdeV row are longer or project outward a greater distance from the plate 5 than the wings 10 of the double row. This causes the body of the plate 5to be closer `to the outer plate 4 than to the plate `3, as shown.

In the particular structure shown in the drawings, the longer tongues or wings 9 contact at their outer edges with the associated outer plate 3, while the shorter tongues 10 terminate short of the outer plate 4 toward which they extend. The body of the plate 5 is held out of contact with the outer plate 4, however, by outwardly projecting pin pricks 11, 11 on that side of the plate 5 facing said outer plate 4. e These projections 11', 11 are distributed over the plate 45 and engage the vertical flatportions of said plate 4 in line with thei'olded parts 7, 7 of the strips 6, 6.

On the opposite side, the plate 5 is provided with pin pricls 12, 12. These are also distributed over that surface or" the plate. These pricks or projections 11, 12 are formed by punching through from thatside of the plate 5 opposite to the one from which they extend. These projections are somewhat conical in shape and the apertures at their apexes have ragged edges 13, as shown in Fig. 8. The tongues or wings 9, 10 are formed by being punched out of the body of the plate 5 and bent outward, as shown. The bases 14 of these tongues are prefer-v ably arranged vsubstantially parallel and transverseto the length of the plate.A

`The tongues or wings 9, 10 and the projections 11, 12 stand in the air passages provided by the unit. The projections 11, 12 stand in the air passages providedbythe unit. The projections 11, 12 :make the surface of the plate 5 rough and increase the radiating capacity of the plate 5 by raising up numerous minute points from which the heat is morefrapidly Vradiated than from an equivalent fiat surface. Said projections 11, 12 also have the tendency to increase the turbulence of the air in its passage through the core. The wings or tongues 9, 10 are turned at an inclination of approximately 15 degree angle to the passage of air between the outer plates'so that `the air at high velocity entering the core is diverted or thercourse changed, further ,increasing the turbulence and turning cooler air against the heated metal. f

The holes 15, 15 made in the plate 5 by punching out the tongues or wings 9, 1() allow the air to flow through the plate at many places over its surface, thus again increasing the radiating capacity of the device.

lilhile the outer plates 3, 4 of a unit could be made separate and joined together after ingcorrugated, is folded to provide the outer plates 3, 4 with a folded edge 16 at one end ot the unit. and overlapped edges 17, 17 at the opposite end with the partition plate between, as shown in Fig. 9. The units so made are placed together to build up a complete core and the whole secured to the tanks and placed in the shell 2 in accordance with radiator practice.

In the'drawings, Ik have shown the plate 5 held out oi' actual contact with the outer plate 4 by the projections 11. AIt might be Vdesirable in some instances to have the. two

plates 4 and 5 in actual contact to have as great an area as possible in order to permit rapid conduction of heat from the plate 4 Jforming part of the water conduit to the partition plate 5. To obtain this,lthe plate 5 at the point of contact would not be provided with projections 11, 'as obvious.

lVhile I have shown and described herein in detail a structure embodying the eatures of myvinvention, the details of construction and arrangement of parts may be variously-changed and modified without departing from the. spirit and scope of my invention.

I claim as my invention:

1. yA radiatory unit, comprising a pair of opposed corrugated outer sheet metal plates spaced apart to provide an air passage between them, and a flat sheet metal partition plate between said outer plates and having tongues and pin pricks punched out from the metal of the plate with the tongues on opposite sides Aof the plate and extending into the corrugations of the outer plates, said tongues beingtlat and twisted bodily to-extition plate and be atan inclinationto the passage or' air between saidouter plates, the

tongues on one side of the partition plate having their outer ends lin contact with the adjacent outer plateand the pin priclrs on the opposite sides of the partition plate contacting with the otherv outer plate for spacing the `body portion of the partition plate from both outer p1ates.`

2. A radiator unit, comprising a pair of opposed outer plates spaced apart to provide an air passage between them, and a fiat partition plate -between said outer plates, said partition plate having tongues on opposite sides thereofand arranged at an inclination to the passage of air between said outer plates, said tongues being punched from the partition plate and projecting toward said outer plates with the tongues on one sideof said partition plate longer than those on .the other for spacing the partition plate opposed outer plates spaced apart to provide an air passage between them, and a flat partition plate between said outer plates, said partition plate having tongues and pin prieks on opposite sides thereof and punched from said plates, said tongues being arranged at an inclination to the passage of air between said outer plates and projecting toward the same, said tongues being longer on one side of said partition plate than the other for spacing said partition plate closer to one outer plate than the other, the pin priclrs -on the side of the shorter tongues engaging the outer plate opposite the same.

4L. A radiator unit, comprising a pair of opposed corrugated outer plates, corrugated strips carried by said outer plates at theV longitudinal edges thereof for spacing said outer plates apart, and a flat partition plate between said outer plates and inside of said strips, said partition plate having tongues on opposite sides thereof and extending into the depressions in said outer plates for spacing the partition plate therefrom.

5. A radiator unit, comprising a pair of opposed corrugated outer plates, corrugated strips carried by said outer plates at the longitudinal edges thereof for spacing said outer plates apart, and a flat partition plate between said outer plates and inside of said strips, said partition plate having tongues and pin pricks on opposite sides thereof, said tongues extending into the depressions in said outer plates and being longer on one side than the other for spacingrsaid parti tion plate closer to one outer plate than the other. Y In testimony that I claim the foregoing as my invention', I aflix my signature this third day of October, A. D. 1922.

JOSEPH D. HARRIS. 

